Screening apparatus for sewage

US6103110A · kind A · utility

Assignee

• Hans Huber AG Maschinen-und Anlagenbau · DE

Inventors

• Christian Frommann · Dresden, DE
• Thomas Schreiber · Berlin, DE

Key dates

• Filing date: Oct 6, 1998
• Grant date: Aug 15, 2000
• Expiry date: Oct 6, 2018

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D29/828
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A screening apparatus (1) for sewage (13) including liquid (4) and debris and flowing in an oncoming tube (23) includes a conveyor assembly (6) and a separation area (2). The conveyor assembly (6) has a tube-like housing (7), an axle (8) driven by a motor, and a screw (9) provided on the axle (8). The conveyor assembly (6) with its axis (10) is arranged substantially vertical to convey the debris in a substantially upward direction. The separation area (2) of cylindrical shape to deposit the debris has an axis (5), an inner surface (41), a circumference, and openings (3) located about the circumference. The separation area (2) with its axis (5) is arranged in alignment with the substantially vertically arranged axis (10) of the conveyor assembly (6). The separation area (2) is connected to the housing (7) of the conveyor assembly (6), and includes an opening (17) serving as an inlet (40) for the sewage (13) into the interior of the separation area (2).